Low‐Temperature Solid‐Phase Synthesis of Graphene Thin Films Usable in the Harsh Environment of Liquids
ABSTRACT The synthesis of graphene at lower temperatures remains challenging, along with the expansion of its application areas. Here we demonstrated the graphene synthesis on various substrates at and above 350°C by a solid phase reaction method. In this method, C‐rich Ni–C films are deposited on the substrates by conventional magnetron sputter deposition at room temperature with a binary target, followed by vacuum annealing. This resulted in phase separation of the multilayer graphene on top. The temperature dependence of graphene formation is investigated by high‐resolution transmission electron microscopy (TEM), in situ X‐ray diffraction (XRD) and Raman spectroscopy. Graphene thus synthesized on a stainless steel (SS) plate is successfully used to enhance the biofilm formation and the current generation by Geobacter species for use in microbial fuel cell application. As transfer‐free graphene can be synthesized directly on substrates irrespective of their material and shape, and is usable in harsh environment of liquid, this simple method is believed to be quite promising for a variety of applications.
Authors
- Naoko Yoshida (ORCID: https://orcid.org/0000-0003-1981-2829)
- Yazid Yaakob (ORCID: https://orcid.org/0000-0001-6691-433X)
- Mohd Zamri Mohd Yusop (ORCID: https://orcid.org/0000-0003-0897-2712)
- Kosuke Kurushima (ORCID: https://orcid.org/0000-0003-3998-6746)
- Masaki Tanemura (ORCID: https://orcid.org/0000-0001-8771-7888)
- Toru Asaka (ORCID: https://orcid.org/0000-0001-7399-1077)
- Naoya Fukui (ORCID: https://orcid.org/0000-0003-4021-3193)
- Jiaxin Yan (ORCID: https://orcid.org/0000-0001-9964-732X)
- Sidhartha Giri (ORCID: https://orcid.org/0000-0003-3927-7392)
- Vikaskumar Pradeepkumar Gupta (ORCID: https://orcid.org/0000-0001-5370-5301)
- Daniel H. C. Chua (ORCID: https://orcid.org/0000-0002-2463-6244)
- Muzzammil Ngatiman (ORCID: https://orcid.org/0000-0003-1616-4168)
- Wei Lin (ORCID: https://orcid.org/0000-0002-0322-6545)
- Yong Yang (ORCID: https://orcid.org/0000-0002-9928-7165)
- Hidetoshi Miyazaki (ORCID: https://orcid.org/0000-0002-4558-4295)
- Nur Sahiera Binti Abd Rohim
Institutions
- Universiti Putra Malaysia (MY)
- National University of Singapore (SG)
- Nagoya Institute of Technology (JP)
- Chinese Academy of Sciences (CN)
- NGK Insulators (Japan) (JP)
- Toray Industries, Inc. (Japan) (JP)
- Shanghai Institute of Ceramics (CN)
- University of Technology Malaysia (MY)
- Nagoya University (JP)
Publication Details
- Journal
- Advanced Materials Technologies
- Published
- 2025-11-27
- DOI
- https://doi.org/10.1002/admt.202500936
- Primary Topic
- Graphene and Nanomaterials Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00